private func showMergeBtn(at index: Int, mergeUp: Bool) -> Bool {
        if (index == 0 && mergeUp) || (index == self.overtimeList.count - 1 && !mergeUp) {
            return false

        }
        let subtractIndex = mergeUp ? -1 : 1
        if let firstRequest = self.overtimeList[safe: index], let secondRequest = self.overtimeList[safe: index + subtractIndex] {
            if firstRequest.beaconStayLogId.isEmpty() || secondRequest.beaconStayLogId.isEmpty() {return false}
            if mergeUp {
                return !checkCoveredTimeSpace(checkDuration: (convertToInt(secondRequest.endTime), convertToInt(firstRequest.startTime)), durationArray: self.otRequest?.workingTimeDurations)
            } else {
                return !checkCoveredTimeSpace(checkDuration: (convertToInt(firstRequest.endTime), convertToInt(secondRequest.startTime)), durationArray: self.otRequest?.workingTimeDurations)
            }
        }
        return false
    }
private func checkCoveredTimeSpace(checkDuration: (Int?, Int?), durationArray: [WorkingTimeDurations]?) -> Bool {
        guard let durationList = durationArray, !durationList.isEmpty else {return false}
        for duration in durationList {
            if checkTimeInDuration(time: checkDuration.0, duration: duration) || checkTimeInDuration(time: checkDuration.1, duration: duration) {
                return true
            }
        }
        return false
    }

    private func checkTimeInDuration(time: Int?, duration: WorkingTimeDurations) -> Bool {
        guard let time = time else {return false}
        return time >= (duration.start ?? 0) && time <= (duration.end ?? 0)
    }
private func convertToInt(_ str: String?) -> Int {
        guard let timeString = str else {return 0}
        let hourRange = 0...1
        let minuteRange = 3...4

        let hour =  Int(timeString[hourRange] ?? "01") ?? 01
        let minute = Int(timeString[minuteRange] ?? "01") ?? 01
        return (hour*60 + minute)
    }